38979897982 has 8 divisors (see below), whose sum is σ = 61547207400. Its totient is φ = 18464162184.

The previous prime is 38979897967. The next prime is 38979897997. The reversal of 38979897982 is 28979897983.

It is an interprime number because it is at equal distance from previous prime (38979897967) and next prime (38979897997).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512893357 + ... + 512893432.

It is an arithmetic number, because the mean of its divisors is an integer number (7693400925).

Almost surely, 2^38979897982 is an apocalyptic number.

38979897982 is a deficient number, since it is larger than the sum of its proper divisors (22567309418).

38979897982 is a wasteful number, since it uses less digits than its factorization.

38979897982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025786810.

The product of its digits is 987614208, while the sum is 79.

Subtracting from 38979897982 its reverse (28979897983), we obtain a palindrome (9999999999).

The spelling of 38979897982 in words is "thirty-eight billion, nine hundred seventy-nine million, eight hundred ninety-seven thousand, nine hundred eighty-two".